The exact server address and port for your device is specified in Unit Settings on the Hardware tab.
The list of possible addresses is below:
Create a unit in your account! Select your device type, set a unique ID and get the server address and port for connecting the device.
Configure your tracker to send data to the server address and port received when the unit was created. As soon as your tracker starts sending data to the server, the unit will immediately be displayed in the application.